A number of thermoformed Packaging Trays

What is Thermoforming?

Thermoforming is one of the most accessible and easy to understand manufacturing processes. As with all mass-produced products, you’ve probably used a thermoformed product without even realising it. For instance, high end boxed chocolates are o'...

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A part with and without an Undercut

All About Undercuts in Product Design

Undercuts. No Plastic Injection Moulder wants them and every DIY part design has them. Undercuts, are part and parcel of what we do here at Dienamics. Most of our clients are looking to create or improve their own products, but are restrained to '...

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A Snap Fit (Clips Snap) showing the stresses it endures after a Finite Element Analysis (FEA)

All About Snap Fits in Product Design

Snap fits (also known as Clip Snaps) are moulded plastic features of products which clip two parts together. You have probably seen them, in various plastic products before, but you may not have realised how much thought and effort goes into gett'...

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Lets Talk About Polyurethane

Polyurethanes (also known as PUR or UR) are a massive family of highly versatile engineering materials designed to provide properties not available in conventional rubbers, metals and plastics. Typically they have higher oil and solvent resistanc'...

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Multiple views of a Gas Assisted Moulded Plastic Handle

What is Gas Assisted Injection Moulding?

Gas Assisted Injection Moulding is a highly technical form of injection Moulding, that uses both plastic and gas (usually nitrogen) to fill an injection mould under pressure. The main benefit of this manufacturing process is that it’s ability t'...

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A sink mark formed by excessive Shrinkage

All about Shrinkage in Product Design

A sad fact of injection moulding and plastics manufacturing in general, is that plastic shrinks. And sometimes it shrinks a lot. So as plastic Injection moulders we’ve learnt to deal with shrinkage and today we are going to share a few of our t'...

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Lets Talk About Acrylonitrile Butadiene Styrene (ABS)

ABS is purpose built be easy, cheap, stiff and tough, all while being capable of displaying great surface finishes and colors. Originally developed in the late 1940's, ABS combines the acrylonitrile, butadiene and styrene monomers with the int'...

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Lets Talk About Polyoxymethylene

Polyoxymethylene (POM), usually referred to as Acetal, is a widely used engineering plastic. Its primary claim to fame is its use in mechanical parts. If it has to bear a load, like a gear, a handle, a zipper or the foot on a piece of furniture, '...

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Two co-extruded Plastic Profiles

What is Plastic Co-Extrusion?

Plastic Co-extrusion is very similar to Plastic Extrusion, however, with co-extrusion you are inserting multiple polymers into the extrusion dies to produce a single profile with a range of physical characteristics. In this article, we’ll cover'...

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Stereolithographic Printer creating prototype parts.

What Is Stereolithography?

Stereolithography (SLA) is a type of rapid prototyping, and in this article, we will unpack the basic process, advantages and disadvantages of this manufacturing technique.  Along the way will decipher some of the jargon thrown about the rapid p'...

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A plastic part with an extensive Sprue and Runner system, featuring many gates.

All about Gates in Product Design

In this article, we’re talking about gates. And no, not the kind that you shut behind you when you’re leaving the farm. In plastic injection moulding a Gate is where the molten plastic enters the cavity of the tool. That’s to say it’s dif'...

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Lets Talk About Polyethylene Terephthalate

Polyethylene terephthalate (PETE or PET) is one of the most commonly used thermoplastic polymers in the world and is better known in the textile industry by the trade name "polyester." It is a naturally transparent and semi-crystalline plastic wide'...

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